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| Low oil pressure at idle | |
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| Tweet Topic Started: Oct 13 2013, 06:32 PM (507 Views) | |
| guldens | Oct 13 2013, 06:32 PM Post #1 |
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I just installed a remanufactured crank with new bearings. I use penzoil 5w-20 oil. At startup, the pressure is 40 psi. As it warms up, it's 22 psi when going down the road. When I come to a stop, the pressure gradually goes down to zero, if I sit at idle for over 30 seconds. I increase the rpms a little to keep the pressure at 10 psi. I have installed an oil pressure gauge. Is this normal? Could it be my gauge? Do I need to go to a higher weight oil? Is it the oil pump? Or do I just not let it bother me? |
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| Deleted User | Oct 13 2013, 06:49 PM Post #2 |
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Did you check any of the bearing clearances when you installed the crankshaft? |
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| budfreightliner | Oct 15 2013, 08:33 PM Post #3 |
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New Member
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The 5w-20 is not a problem i have 0w-20 in my oil sump with 7k on the oil. i am afraid to say it sounds. like the clearences at mains are to wide. |
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| Johnny Mullet | Oct 15 2013, 08:49 PM Post #4 |
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Fear the Mullet
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How low is your idle? Idle speeds below 500 RPM will turn on the light from my experience. |
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| paul11211 | Oct 15 2013, 08:53 PM Post #5 |
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If you went thorugh all that trouble to replace the crankshaft, why did you not just rebuild the whole engine? I would have put in a new oil pump! |
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